Hermetic closure for receptacles.



No. 826,105. PATENTEDJULY 17, 1906.

. W. IL'HONISS.

HER METIG CLOSURE FOR REGEPTAGLES. APPLICATION FILED HAB.21.1904.

2 sums-SHEET 1 wams ws: A Invenvbor PATENTBD JULY 17, 1906.

W. H. HONISS. HERMETIG CLOSURE PORRBGEPTAOLES.

APPLICATION mum IAB..21,1904.

z SHEETS-SHEET 2.

N |||l|| IIIIILIHJIIJ V unirnn s'rnrns PATEN OF ICE.

WILLIAM H. HONISS; or HARTFORD, CONNECTICUT.

HERMETIC CLOSURE F OR REOEFTAOLES.

u ssenos.

Specification of Letters Patent.

- invented July 17, 1906.

Application filed March 21. 1904. Serial No, l99,220.

and useful Improvements'in Hermetic (310-.

, sures for Receptacles, of which the following is a full, clear-,andexact specification,

This invention relates to improvements in Closures forthe hermeticsealing of jars, tumblers, and other rece tacles.

Figures 1 and 2 of t e drawings are en- I larged fragmentary side viewsin section of this im roved closure as applied to a plainrimmed tumblerarranged to seal against an outer zone of the tumbler-rim, Fig. 1showing the parts in the position occupied by them during the airexpelling or exhausting operation, while Fig. 2 shows the closure in itssealed position. Fig. 3 is a more complete side view, partially 1nsection, of a tumbler with the gasket and cap insealed condition. :Figs.4, 5, and 6 are views corresponding to Figs. 1, 2, and 3 and showing theparts arranged to seal the gasket against an inner. zone of a plaintumbler-rim. Figs. 7 and 8 are fragmentary side views in section of thisimproved closure as applied to a shouldered jar, the two figures showingthe parts in their unsealed and sealed condition, res ectively.

This improved closure finds its c 'ef utility in the form known asa,wedging closure, in which the gasket is com ressed at an angle againsta peripheral edge or shoulder of a re' .ceptacle by means of a taperingor flaring cap. The gaskets most commonly used for these wedgingclosures are of circular or other compact cross-sections These gasketsare sn 7 ported prior to the sealing operatiori just above the shoulderor edge a ainst which they are to be compressed, an it is necessary'todeform agasket of circular crosssection to a considerable extent fromits original form in order to carry a sufficient amount of it across thesealing edge or zone of the receptacle upon which it is to becompressed. Inasmuch as the gasket should rest with comparativelooseness'upon its seat during the air-exhausting operation,

it follows that the deforming of the gasket to carry it across itssealing-seat must take place during the sealing operation, which usuallymust be a very Moreover, the sealin inside the hermetical quickoperation.- operation takes place y-sealed retort and bewith certaintyyond the observation and direct control of form of gasket depend almostwholly upon the form and "uniformity of the sealin -seat and the cap'and upon the manipu ative methods employed in the sealing operation.

The gasket used in this improved formof closure is particularly welladapted for use in the wed ing ty e of closures, since it is comparativey thic at the middle portion, at which the rincipal pressure is applied,and thin towar the edges, where less rubber is required for the sealingo eration. One of these thin edges is utilize to project across thesealing-seat while still in its initial or airerrp'elling condition,thus insuring a safe and certain positioning of the gasket as it isoriginally placed upon the receptacle by the operator, who is thusenabled to observe that each closure is in proper position for thesubsequent sealing'operation. Moreover, this form of gasket by disposingthe material in the most advantageous manner e'fi'ects an economly inthe use of the rubber of which the gas et is made by reducing the costof the material required for a 'ven number of askets. The most suitab ematerial now known for these gaskets is a high grade of rubber, which byreason of its increasing use in the arts is constantly increasing invalue. Hence economy in its use is a factor of increasing importance.

The closure-gasket here shown is especially suited for the sealing oftumblers, mugs, or other receptacles having plain rims, which haveheretofore been difficult to seal on 210- unfits the receptacle formanysubsequenthousehold uses which might be served by a plain-rimmedreceptacle, such as a tumbler or mug.

The present invention is therefore shown herein not only as applied tothe sealing of a shouldered jar, but alscasappiied to the sealing'of anordinary glass tumbler, as a goodexample of areceptacle well adapted toa variety of household uses after its original purpose as asealed'package has been served.

The form of the gasket 26 used in this improved closure is best shown inFig. 1. The cross-section is approximately that of a parallelogramhaving oblique angles, the parallel inner and outer sides 27 and '28 ofwhich are coincident with the inner and outer cylindrical faces of thegasket, respectively. The inclined line of the cross-section is at anacute angle with the line-27 and is coincident with the exterior conicalsurface oi" the gasket, while the line 29 is inclined at an acute anglewith the outer line 28 of the cross-section and iscoincident with theinner conical suri'u'e of the gasket. tion of this gasket isapproximately that of a rhomboid or a rhombus the two opposite parallelsides of which are coincident with the cylindrical inner and outer facesoi" the gasket, which is, in cliect, a shortcylindcr having obliqueupper and lower edges. These oblique upper and lower edges are hereinshown to be parallel with each other. Obviously the an .gle ofobli uitymay vary from that herein shown, anr these two edges may also differfrom each other as to the angle of obliquity. This asket when of propersize will when placediupon the receiving-seat of a receptacle centralizeand position itself in proper rela 'tion to the sealing seat with thethin acutc angled edge 33 projected'rwer and below the sealing-seat, asshown in Fig. 1. The edge 33 projects well below the outer edge of therim 22 and between that rim and the cap flange, thus bringing thethickest portion of the gasket approximately to the position at which itis to be wedged against the rim of the tumbler by the subsequent scalingoperation. The thin edges of the gasket above and below the sealingportion thereof constitute safety margins for the gasket to insure theproper positioning of the thicker central or sealing zone of the gasket,the thinning of these edges cfl'ccting a saving of the material of whichthe gasket is composed, not only without sacriiicing the cilicicncy olthe gasket, but actually increasing that efliciency. The proportions oi"these gaskets and the angles of the respective edges may be varied toany desired extent to suit different receptacles or caps or to suitdiil'erent conditions or servicel The closure-cap employed in cornnection with these gaskets may be of different shapes, suited to thedillerent types of receptacles.on which the closure is to be employed.W'hen employed for making a seal upon the outer edge oi a receptacle,the cap may be of the form shown in Figs. 1, 2, 3, 7, and 8, the flan eof the cap being llared outwardly toward its lower edge. In making theseal against an inner edge of a receptacle the form of cap may he asshown in Figs. 4, 5, and c, in which the sealing portion of the flangeilarcs outwardly at the top. In either case the cap is provided witltagasket-receiving seat, some portion of which is flared or inclinedsubstantially in accordiance with the More technically, thecross-secoblique-angled face 29 and 30 of the gasket,

this inclined seat being for the ultimate pur pose of wedging the gasketat anangle against the receptacle-rim. The cap 41 (shown in Figs. 1 and2) is provided with a flange of a generally flaring form, morespecifically having an ogee flare instead of astraight flare. Theinclined portion 42 is slightl curved; but it approximately conforms tot 1e oblique face 30 of the gasket when resting loosely in theair-exhausting position shown in Fig. 1. Obviously, however, theinclined portion 42 of the cap 4.1 may be straight instead of beingcurved, or the, oblique face 29 or 30, of the gasket may be slightlycurved instead of being straight. The lower margin of the cap 41 belowthe inclined. gasket receiving and seal ing portion 42 is preferablyadapted to engage with some portion of the cylindrical face 28 of thegasket, thereby aiding to centralize and retain the gasket in-properposition relative to the cap. l i

The cap 45 (shown in Figs. 4, 5, and 6) is provided with an inclinedgasket receiving and sealing portion 46, approximately coincidin withthe Obll( us face 29 of the gasket 34. This cap is a so preferablyprovided with an outer flange 4:7, extendingapproximately to or belowthe lower edge 35 of the gasket, which projects well below the inneredge of the tumbler-rim when resting in the air-exhausting positionshown in Fig. 4. This closure is here represented as being adaptedp towedge against the inside edge of a tumbler-rim. Therefore the gasket 34is invert ed from the,position which it occu ies when employed ioroutside sealing. hown in some of the other figures.) In Fi s.' Tend 8this gasket is shown as applied to t e making of an outside seal on a.jar '51, having a shouldered sealing-seat 49, which is preferablyrounded or chamfered at the zone which is to receive the effectivesealing ressure. The

lower'thin ed e 52 of the as et iS'projects across and be ow the'siiouder 49 when resting in its initial or air-exhaustin position,

.cap 50 and the upper portion" f the jar,

thereby extending the supporting area of the asket and the cap intheirrelation to, the ar to aid in positioning them thereon before sealingwithout having an unnecessary and undesirable bulk or thickness of thegasket at its upper edge, the'thinness of the edge perinitting the capto tit more closely around the upper portion of the jar. The receptaclesemployed in makingthese wedging closures are )referably provided with amore or less roundedor chamlcrcd scalin -seat, upon which the wcdgingpressure of t e gasket is received.

I claim as my invcntion-- 1. The combination with a receptacleand a.flaring cap, o'l' a gasket made of rubber or of which is inc ined insubstantial. accordance with the oblique face of the gasket.

2 5 4. A closure for hermetically-sealed receptacles comprisin agaskethaving inner and outer cylindrica faces, and an adjacent oblique face,and a cap having a gasket-re, ceivin seat inclined in substantialconform- ;o'. ity wit the oblique face of the gasket,

,f- 5. 1A closure for hermetically-sealed recep tacles compl ising agasket ,having an approximately rhombic' or rhomboidal cross se c tion,the inner'and outer faces of which are .55 substantially" cylindricahanda cap having a receiving-scant portion of which is inclined f insubstantial accordance with one I of the J oblique angled faces of thegasket.

6. A closure for hermetically sealed receptacles comprising agaskethaving anapproximately rhomboidal cross-section, the outer and innerfaces of which are cylindrical and narrower than the oblique facesthereof, and a cap having a gasket-receiving seat, a por- 5 tion ofwhich is inclinedin substantial ac cordance with one of the obliquefaces of the gasket.

T '7. A closure for hermetically-sealed receptacles, comprising a asketa crosssection of so which is substantialfy a-paralielo am'hav- "ing-twoshortersides of cylindrica contour, and-two longer sides at obliqueangles with the shorter sides, and a ca provided with a vreceiving-seat, a portion'o which is inclined a in substantialaccordance with anoblique face of the gasket. T1

8-. The combination with a receptacle, of a hermeticsealing-closurqcomprising a gasket having an. acute-angled ed e whichprojects at an inclination. downwar y and across the scaling-seat of thereceptacle, and a cap-having an inclined sealing portion for wedging thegaiket against the sealing-seat of the reccotac e. i

9. The combinationwith a receptacle, having a enbetbntiaily'rounddsealing-seat, of a gasket having an acute-angled edge which projectswith a downward inclination across an aealingseat of the receptacle, anda cap pr rided with an inclined portion, for wedgthe gasket at angleagainst the sealingseat of he receptacle. V

1 0. The cembmaticn with a receptacle having a substantially roundedseaiing-seat, of a 'yedging sic-sure therefor comprising a gasket havinginner and outer c lindrical aces and having an oblique-ang ed. loweredge which projects with a downward inclination across the sealing-seatof the receptacle, and a cap provided-with an inclined portion forwedging the gasket against the sealing-shoulder of the receptacle.

11. The combination with a receptacle having arounded sealing zone, of aclosure therefor, comprising a cap having a flexible flaring flange, anda gasket, the upper portion of which is smaller in diameter than theouter diameter 'of the receptacle-rim, and having lower faces whichcon-verge at an acute angle and project downwardly past tllae saidrounded sealing zone of the receptac e. Y

32; The combination with a receptacle having a rounded rim, of a closuretherefor comprising a cap having a flexible flaring flange and a gaskethaving upper faces which converge to a diameter smaller than the outerdiameter of the receptaclerim, and "having lower faces which convergedownwardl an, acute angle, and pro'ect through and beyond the annularspace etween the round of the rim and the cap-flange.

13.'-The combination with a receptacle having a substantially roundedsealing-seat,

of a gasket having a cylindricalface, and an adjacent face at an obliqueangle therewith, forming a wedge shaped annular margin which projectsdownwardly and across the rounded sealing-seat of the receptacle, and acap provided with a' flexible flaring flange for compressing of theasket.

14. he combination, with a receptacle having a rounded rim, of a caphaving a'flexible flange, the upper portion of which is the saidwedge-shaped portion smaller in diameter than the outside of the'receptacle-rim, and is inclined outwardly anddownwardly, merging into asubstantially cylindrical zone, lar er than, and on the outside of, thereceptac e-rim, and a gasket having a downwardly and outward y inclinedinner'surface resti of the rounded rimo the receptacle, and having anacute-angled lower annular corner extending into the annular spacebetween the upon the outer portion outer side of the receptacle rim andthe'jinner side of the cap-flange. I

15. The combination. with a receptacle having a plain rounded rim, of ahermetic closure thereforfcomprisin a gasket having a downwardly andoutwar ly inclined lower surface which in the uncompressed condition ofthe gasket rests upon the rounded rim, with an acute-angled annularcorner pro ecting downwardly on the outer side of the rim,

and 'a sealing-ca having a flexible flange which is inclined ownwardlyand outwardly,

met into a. substantially cylindrical portion which, extends downwardlyupon the outer side of the receptacle-rim leaving an 'tially less inwidth than the thickness of the gasket.

16. The combination with a receptacle havin a plain rounded rim, of asealing-elosure t ierefor cornprising a cap having a flexible flange,the upper portion of which is smaller in diameter than the outerdiameter oi the receptacle-rim, and which i'nclinesout: wardly anddownwardly, merging into a zone having substantially vertical andparallel Walls encompassing the outer side of the re ('optacle-rim,leaving an annular space of substantial width between them, and agasannular space outside of said rim substanket hating a downwanillyanrloutwardly in chned lower surface resting upon the pta ole-rim, andprovided with an acute-an annular corner, which in the uncompricondition of the gasket extends downwar-zlij into the said annularspace.

In testimony whereof l have my name to this specification in the of twosubscribing witnesses.

Witnesses:

JOSEPH Mnnerr'r, JAS. W GREEN

